baber/WOPTO huggingface dataset:
Patent GB-647881-A (GB)
Title: Improvements in or relating to process of producing a levulose-containing syrup
IPC: C13K11/00
Filed: 1944-12-29
Abstract: In a process of producing a levulose-containing syrup by the action of an alkaline catalyst on a dextrose-containing liquor the interconverted liquor with or without removal of the catalyst is subjected to treatment with a hydrogen base exchange resin and then with an anion-exchange resin.  In an example a water suspension of starch of about 18 DEG  B<\>e is hydrolyzed by acidifying with H2SO4 to .03 N and the solution converted as described in Specification 549,143 at about 290 DEG F or 43 lb. steam pressure for 18-20 minutes or until the dextrose equivalent is about 58-62 per cent.  The liquor is neutralized with aqueous lime slurry to a pH 4.5-5.0, filtered and cooled to 125-130 DEG F. 0.25 per cent CaO is added with or without 0.5 per cent vegetable carbon and the temperature is maintained for 4.5-5 hours after which the interconversion is stopped by adjustment of pH to 7 with H3PO4.  The liquor is filtered, cooled and passed through a column of hydrogen base exchange resin Catex No. 12 at 108 gallons/hour/cu. ft. of resin.  The liquor is then passed at a similar rate and in a similar way through a column of an anion exchange resin known as Annex 7293.  When the pH of the effluent falls to about 5.0 the liquor is treated with fresh resin and the exhausted resin regenerated.  The liquor is now passed through a second column of Catex 12 and then Annex 7293.  The liquor is then refined by adding 0.5-1 per cent of carbon and agitating the suspension at a temperature of about 125 DEG F up to 130 DEG F for 10 minutes, filtering and evaporating at a temperature not exceeding 130 DEG F to 32 DEG  B<\>e.  The syrup obtained is again treated with 0.5-1 per cent of vegetable carbon, the two stage carbon treatment preferably being carried out in countercurrent manner.  The liquor is finally filtered and evaporated to 42 DEG  B<\>e. Specifications 495,032 and 495,401, [both in Group I], also are referred to.
Patent GB-191142-A (GB)
Title: Improvements in fountain-pens
IPC: B43K5/17
Filed: 1921-10-04
Abstract: 191,142. Narayan, P. Oct. 4, 1921. Reservoir pens; pencil, pen, and like point-protectors.-A reservoir pen without a detachable cap is provided with positive means, readily operated by the fingers of one hand, for sliding the pen into and out of the writing position, the nibcarrying member automatically operating a closing lid in the sliding movement; a safety device is also provided for stopping the flow of ink when the pen is not in the writing position. A self-filling pen of the collapsable-sac type is shown in Fig. 1, wherein the sac 3 and nib-carrying socket 2 are slidable as a whole within the barrel 7 and are operated by a button 13 upon a pin 12 which slides within a longitudinal groove 11 in the fixed cap 10. The cap is provided with a spring-hinged lid 15 with an inwardly-projecting tail-piece 16 arranged so that it operates to raise the lid when it is met by the nib-carrying socket in its outward movement. The pin 12 carrying the sliding button 13 is secured above the extremity of a light lever 19 hinged to the socket and carrying a, pad 20 at its forward end which presses upon the opening of the nib 1 and prevents escape of ink when the pen is not in the writing position. When the pen is projected the obliquity of the slot 11 causes the pin 12 to press upon the lower end of the lever 19 and raise the pad 20 from the nib. The sac is collapsed in the usual manner by pressing upon it a metal strip 17 operated by a hinged lever 18. The strip 17 is connected to a spring lever attached to one of a pair of lugs 8 which project from a ring 6 and slide in longitudinal grooves 9 in the inner wall of the pen barrel. The ring 6 surrounds the sac 3 near its lower end and is attached to a metal strip 5 extending beneath the reservoir and attached at its upper end to a flange 4 on the nib-carrying socket. Fig. 2 shows the upper portion of a non-self-filling pen, wherein a hinged lid 15 is opened by a leaf spring 31 secured at its lower end to the bottom of a chamber 22. The pen 1 and feed-bar 21 are projected and retracted by a button 13, slidable within a slot 29, and the lid 15 is automatically opened when the pen is sufficiently projected for the stud 32 upon the leaf spring to slip within the recess 33 at the bottom of the feed-bar. The feed-bar has a strip 26, of indiarubber or similar material, which prevents the escape of ink when the ink passage 25 and the passage 23 leading from the reservoir are not in alignment.
Patent GB-1082738-A (GB)
Title: Cow bell instrument
IPC: G10H1/02
Filed: 1965-06-22
Abstract: 1,082,738. Cow-bell simulator. SEEBURG CORPORATION. June 22, 1965 [June 26, 1964], No. 26250/65. Heading G5J. The circuit shown simulates the sound of a cow bell for use in a side-man as described in Specification 993,444. It comprises a circuit tuned to the higher of two frequencies 40 (1400 c.p.s.) and having a high Q value produced by the emitter follower circuit 30 with feedback 31 and a further circuit tuned to the lower of the two frequencies (680 c.p.s.) and having a low Q value, the two circuits being supplied in parallel by a pulse applied through resistor 50. The two frequencies are not harmonically related. The outputs of the two circuits are combined and fed through an audio amplifier to the loudspeaker.
Patent GB-351326-A (GB)
Title: Improvement in rotary cultivating or ground-working machines
IPC: A01B33/14
Filed: 1930-09-03
Abstract: 351,326. Machines for working land. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Sept. 3, 1930, No. 26302. Convention date, Dec. 12, 1929. Addition to 351,321. [Class 6 (i).] In rotary machines having spring- mounted tools provided with rubber buffers as described in the parent Specification, the rubber buffers are held between the prongs of guide forks which, in known manner, prevent lateral displacement of the tools under the influence of lateral forces. The prongs of the guide forks 9 are fixed on the tool-carrying bosses 2 on the shaft 1 and fit into grooves in the long rubber buffers 7 between them. The tools 6, or the springs 5 carrying them, pass between the prongs of the guide forks.
Patent GB-1135204-A (GB)
Title: Reflected half-base position digitizer
Inventor: EVANS DAVID SILVESTER
IPC: H03M1/00
Filed: 1965-06-22
Abstract: 1,135,204. Selective signalling. MOORE REED (INDUSTRIAL) Ltd. 9 June, 1966 [22 June, 1965], No. 26346/65. Heading G4H. A shaft-position is digitized by a gearconnected set of brush-sensed coded scales each of which, Fig. 1, comprises two tracks, the conductive regions of the first track being labelled 0, 1, 2 . . . 9 and being connected together as shown and the conductive regions of the second track being labelled 11, 12. Thus with potential applied to the brushes two of the seven output terminals are marked to indicate the relative portions of the brushes and the scales. Lead and lag brushes are used for each track, the operative brush being selected, in the usual way by an additional indexing track for the lowest denominational scale and by the next lower denominational digit, for the other scales.
Patent GB-761120-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: PEARCE JAMES GORDON
IPC: H04Q3/42
Filed: 1953-08-07
Abstract: 761,120. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. July 19, 1954 [Aug. 7, 1953], No. 26374/55. Divided out of 761,068. Drawings to Specification. Class 40 (4). Circuit arrangements for striking one gas discharge tube in one group of a plurality of groups of tubes comprises three selections, the first selection connecting H.T. to all the tubes of one group, the second selection applying biasing potential to one row of tubes in all groups, and the third selection applying a pulse to one column of tubes in all groups. The description is included in the parent Specification, but the claims differ.
Patent GB-322023-A (GB)
Title: An improved method and apparatus for refrigerating
IPC: F25B15/00
Filed: 1928-09-14
Abstract: 322,023. Marks, Sir G. C., (Williams Oil- O-Matic Heating Corporation).Sept. 14, 1928. Refrigerating, special processes for. - In refrigerating systems of the kind in which the refrigerating effect is produced by the negative heat of solution of a salt, such as potassium sulphocyanite, in a solvent, e.g. water, the solution is re-concentrated and the solution cooled for reuse by immersion in a liquid other than the solvent. The refrigerating effect may be produced in a ribbed vessel 1 from which the solution flows through a pipe 4, including a coil 5 forming a heat exchanger with a solvent return pipe 32, and a heated pipe 9 to a heated concentrating vessel 10. The evaporated solvent passes through a duct 18 to a water-cooled condenser 19 having a vent 20 to the atmosphere and an outlet to the solvent return pipe 32. The molten solute flows through the trap 23 and a pipe 27 into the cool oil in an extension of the ribbed vessel 1 and sinks. into the vessel where it meets the solvent returning through the pipe 32. The oil is cooled by a water-jacket which is in series with a similar jacket surrounding the solvent return pipe 32. Specification 322,022 is referred to.
Patent GB-1429843-A (GB)
Title: Endwise coupling of light guides
IPC: G02B6/32
Filed: 1973-06-02
Abstract: 1429843 Light guides PLESSEY CO Ltd 23 May 1974 [2 June 1973] 26420/73 Heading G2J A coupler for light guides 5, 6 which may be single fibres or bundles of fibres, or for a light guide and a terminal member e.g. an emitter or detector, comprises two members 1, 2 adapted to fit together so that light guides secured respectively to one of the members are axially aligned, and a lens 12a, 12b interposed between the end-faces 5a, 6a of the guides so as to focus on each face an image of the other. The lens may be a single convex element, Fig. 1 (not shown) or two such elements, one supported in each member, Fig. 2, (not shown), the element(s) being out of contact with the end-faces 5a, 6a. In Fig. 3, the lens bodies 12a, 12b each have a convex ellipsoidal face 13a, 13b, having an eccentricity 1/n where n is the refractive index of the body material.
Patent GB-388104-A (GB)
Title: Improved manufacture of woven fabrics having incompletely twisted weft yarns
IPC: D03D15/00
Filed: 1931-09-22
Abstract: Cotton fabrics &c. are woven with any warp and with weft such as cotton comprising moistened incompletely twisted yarns wherein the degree of twist is half or less than half that usual for the particular count.  The weft is moistened just before weaving by wrapping the weft bobbins in wet cloth, or by steaming, or by placing them in water in vacuo to facilitate penetration of the yarn. Moistening agents such as sulphurized oils may be added or hygroscopic materials.  The fabric may be mercerized, bleached, and dyed.
Patent GB-892927-A (GB)
Title: Improvements in or relating to television camera tubes
Inventor: HENDRY ERIC DOUGLAS
IPC: H01J29/38
Filed: 1959-08-04
Abstract: 892,927. Television pick-up tubes. ENGLISH ELECTRIC VALVE CO. Ltd. Feb. 10, 1960 [Aug. 4, 1959], No. 26548/59. Drawings to Specification. Class 39(1) In a television camera tube of the image orthicon type, a thin electrically-resistive layer is interposed between a substantially transparent conductive back layer and the Customary photo-cathode layer, and a control mesh or grid, maintained at a small potential with respect to the back layer, is spaced from the photo-cathode layer. The resistive layer which may be a metal oxide such as nickel oxide and may be 100 microns thick, prevents the emission from any point of intense highlight from increasing beyond that necessary to fully charge the target, and consequently reduces " halo effects " which would otherwise occur. The photo-cathode layer may be of mosaic form.
Patent GB-1395951-A (GB)
Title: Dishwashing machines
IPC: A47L15/42
Filed: 1972-06-07
Abstract: 1395951 Dishwashing machines HOBART CORP 7 June 1972 [21 July 1971] 26634/72 Heading A4F In an automatic dishwashing machine having means for circulating and spraying water in a washing chamber provided with a door, and a timer for controlling the supplying, circulating, and draining of water according to different programme cycles including at least one complete wash-rinse-dry cycle and another cycle which provides only an incomplete cleansing operation, means is provided for actuating a signalling device when the other cycle is selected and the chamber door is opened, both during and after completion of the other cycle, and the means for deactivating the signalling device when a complete cycle is subsequently selected. The control system includes push-button actuated selector switches A to J, only one push button being effective at a time. When the full cycle push button is depressed the switches A, B, C are closed, the switch A then being connected via a switch 42, closed when the chamber door latch 16 is locked, to switches C to H and to switch M of a series of cam actuated switches K to W operated by a timer motor TM, and controlling washing and drying period indicating lamps WL, DL, pre-washing and rinsing period indicating lamps PL, RL, sterilizing heating element SH, circulating pump motor RP, detergent cups DC and DC', drain valve DV, rinsing agent dispenser RA, water heating element WH, drying blower motor BM, air heating element AH, ,water supply valve WF, timer advance and timer motors TAM and TM. The full cycle comprises pre-rinsing, washing with detergent from cup DC, two further rinses, washing with detergent from cup DC',  three further rinse periods, and a drying period. The appropriate indicating lamps PL, WL, RL, and DL and illiminated as the cycle proceeds, and if the cycle is interrupted by releasing the door latch 16 the indicating lamp corresponding to the period in which the interruption occurs remains energized. When the rinse-only button is depressed the switches A, B, C, E are closed and the timer advance motor TAM, is twice energized so that one rinse only is performed. When the chamber door is opened after or during the rinseonly cycle, the release of the latch 16 closes a switch 45 to energize the rinse-only indicating lamp RO via the closed switch B. The lamp RO remains energized until the door is closed or until another cycle is selected.
Patent GB-210818-A (GB)
Title: Improvements in means for feeding molten glass
IPC: C03B7/10
Filed: 1922-10-03
Abstract: 210,818. Miller, W. J. Oct. 3, 1922. Delivering molten metal.-An automatic feeding device comprises means for successively discharging gobs of metal from the tank into a shaping- receptacle which shapes them to the desired form, means for discharging each formed gob from the receptacle into a mould of the forming-machine, and means for severing the neck connecting the gob with the metal in the tank. The device comprises a forehearth A, Fig. 10, having in its underside an outlet 4, through which the metal is discharged in gobs by the reciprocation of a plunger L. The size of the outlet is regulated by a ring 5, the size of which is governed by the kind of ware to be made. The gobs as they are discharged are received in a cup or forming-receptacle G which comprises two recessed blocks F, F<1>, Fig. 16, carried by pivoted levers E, which are connected with the piston of a compressed-air cylinder C, Fig. 10. The receiver G is watercooled and is provided on part of its outer surface with a lining 65, Fig. 16, of asbestos or other porous material. Water is sprayed on to this lining and becomes vaporized by contact with the hot glass, thus providing a gaseous cushion which prevents the gob from becoming chilled by contact with the cup. Between the receiver and the ring 5 are the shears K, which are operated by an air cylinder J. The feeding-plunger L is reciprocated by an air cylinder, and means are provided for replacing it when necessary, and for adjusting its stroke. In operation, the cup receives the gob as it is fed through the outlet 4, and just before the shears K operate, the cup opens to permit the gob to drop into a mould, thus stretching the neck and assisting in severing the gather. The cup shapes the gob, a cup of the proper shape being used for particular classes of ware. The operation of the parts are governed by valves that control the supply of air to the actuating-cylinders, and the valves are operated in proper sequence by a trip connected to the reciprocating piston of a timing- cylinder. Specification 151,605 is referred to.
Patent GB-1202347-A (GB)
Title: A method for the production of a profiled fom and the production of yarns and fibres
Inventor: BADRIAN WILLY HEINRICH JOZEF
IPC: D01D5/42
Filed: 1969-05-27
Abstract: 1,202,347. Fibrillatable films. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 27 May, 1969, No. 26758/69. Heading B5B. A film which may be fibrillated when stretched is produced by extruding one or more thermoplastic polymers through a plurality of separate regularly spaced orifices to form filaments which expand due to die-swell, the orifices being sufficiently closely spaced that the swollen filaments at least partially adhere to each other longitudinally. The orifices may be arranged in a linear or annular row; adjacent orifices may be staggered from each other in a zig-zag pattern. Tubular films may be inflated after extrusion. Upon stretching longitudinally the film fibrillates. Examples disclose the extrusion of polypropylene, optionally blended with polyethylene. In one example the component filaments are composite, being made from two different polypropylenes. In this latter case the filaments crimp upon heating.
Patent GB-775436-A (GB)
Title: Improvements in and relating to prepayment gas meters
Inventor: CHARLES JOHN ARTHUR
IPC: G07F15/00
Filed: 1954-09-15
Abstract: 775,436. Prepayment gas meters. UNITED GAS INDUSTRIES, Ltd. Dec. 14,1955 [Sept. 15, 1954], No. 26812/54. Class 27. A prepayment gas meter has a main gas outlet 5 and a separate restricted outlet 6 which remains open after the main outlet has closed on exhaustion of credit to supply a restricted flow until it is also closed by the completion of a predetermined movement of the valve control element 20 or of a corresponding number of revolutions of the meter crank spindle. The valve pads 13, 14 for the two outlets are carried by arms 15, 16 on a spindle 17 and, as shown in Fig. 1, the arm 15 may be resilient to allow the subsequent further movement of the arm 16 after closing of the main outlet 5 or, as in Fig. 3, be free on the spindle 17 and linked to the arm 16 by a pin 27 and spring 26 or both pads may be connected to their arms by pins and springs or the pad 13 may be operated by a leaf spring secured to the spindle 17 and acting on the head of a pin passing through the arm 16. The outlets may be superposed or be side by side or be at 90 degrees to each other and linked by lever means and may open into outlet chambers separated by a partition 4 or one or both may have a seat formed on the outlet pipe union. The control cam disc 20 may be formed with three arcs at different radii to give the three required positions of the valves or may have a radial slot or recess of such form that the pin of the crank arm 21 first rests on the periphery of the disc at one side of the slot, is then engaged in the slot and finally passes out of the slot to the periphery at the further side of the slot; a hump may be provided in the periphery for closing the restricted flow outlet. Alternatively, the cam may be as shown in Fig. 9, the crank pin entering the slot 45 to close the main outlet and the cam continuing to rotate under the consumption of gas caused by the restricted flow until the end 46 of the slot closes the restricted flow outlet. The coupling rod 22 between the crank arm 21 and a crank arm 19 on the spindle 17 may pass through a gas-tight tube 23 between the walls of the upper part of the meter casing or may extend through stuffing boxes in these walls and be restricted to axial movement by fitting at its ends in cups on the crank arms.
Patent GB-813814-A (GB)
Title: Improvements in the production of aqueous dispersions of polymerisation products of ethylene
IPC: C08F10/00
Filed: 1956-09-03
Abstract: Aqueous dispersions of ethylene polymer are made by polymerizing ethylene alone or in admixture with one or more other ethylenically-unsaturated monomers, soluble in water at most up to 10 per cent. in aqueous emulsion in the presence of a free radical forming polymerization catalyst and a water-soluble ethylenically-unsaturated compound in an amount up to 1 per cent with reference to the water in the polymerization medium.  The water-soluble compound is a sulphonic or carboxylic acid or the water-soluble salts, especially alkali salts, or amides thereof and may be a vinyl sulphonate, e.g. the sodium salt, acrylic acid or its salts, acrylamide, or maleic or fumaric acids or their salts, e.g. sodium maleate.  The comonomer may be methyl, ethyl or butyl acrylates or methacrylates, vinyl esters, e.g. vinyl acetate, vinyl halides, e.g. vinyl chloride, vinyl ketones or lactams, e.g. vinyl caprolactam or vinyl caprylic lactam, vinylidine halides, acrylonitrile or maleic or fumaric esters, e.g. diethyl maleate or mixtures thereof.  The free radical forming catalyst may be an azo compound or a peroxide.  Azo catalysts specified are alpha, alpha1-azo-bis-isobutyronitrile; alpha, alpha1-azo-bis-isobutyric acid esters, e.g. the methyl, ethyl or butyl esters; alpha, alpha1-azo-bis-alpha, gamma-dimethylvaleronitrile; alpha, alpha1-azo-bis-cyclohexane carbonitrile; alpha, alpha1 - azo - bis - alpha - methyl - gamma - diethylamino - butyronitrile; alpha, alpha1 - azo - bis - alpha - methyl - deltapiperidino-valeronitrile and alpha, alpha1-azo-bis - alpha - methyl - gamma - ethoxy - butyronitrile.  Peroxide catalysts specified are lauroyl, benzoyl and di-t-butyl peroxides, cumene and t-butyl hydroperoxides and t-butyl perlaurate. Emulsifying agents specified are the alkali palmitates, stearates and oleates, e.g. the potassium salts, isopropyl and di-isobutyl naphthalene sulphonic acid salts, the alkali salt of sulphonated castor oil, hydroxyethylation products of high molecular weight fatty alcohols and alkyl phenols, paraffin sulphonic acid salts, benzyl dimethyl phenyl ammonium chloride, stearyl amidomethyl pyridinium chloride and stearyl ammonium chloride.  Polymerization is effected at raised temperatures and preferably raised pressures and may be carried out, e.g. at a pH of 10-12 continuously or discontinuously, or the ethylene may be added portionwise.  The polymer dispersions may be concentrated by evaporation or creaming, e.g. by the addition of substances such as methyl cellulose.  The dispersions can be used for coating or impregnating fabrics, paper or leather or for obtaining solid ethylene polymers by precipitation.
Patent GB-815747-A (GB)
Title: Improvements in or relating to raking devices
IPC: A01D78/00
Filed: 1955-09-20
Abstract: 815,747. Side-delivery rakes. VAN DER LELY N. V., C. Sept. 20, 1955 [Sept. 23, 1954], No. 26857/55. Class 6(3). In a raking device of the kind having rake. wheels 13, 14, 17, 18 arranged in groups, one rake wheel 13, 14 of each group is adjustable about a vertical axis 9, 10 and also about a second vertical axis 5, 6 the second rake-wheel 17, 18 being adjustable about the second axis only, whereby the rake-wheels may occupy positions wherein they co-operate in pairs Fig. 1, wherein they operate singly, Fig. 3, or wherein they all co-operate for side-delivery Fig. 4, (not shown). The main frame comprises an elevated beam 1 having a pivoted drawbar 3, and being supported on castor-wheels 27, 28 the swivel-axis of either of which can be locked. The rake-wheel 13 is mounted on a stub-axle 11 pivoted on the lower end of a cranked beam 7, the other, upper, end of which is pivoted on the frame about the vertical axis 5. The stub-axle 15 carrying the rake-wheel 17, and the arm 19 carrying the castor 27 are also pivoted about the axis 5 and all the members 11, 15, 7, 19 may be locked in any adjusted position.